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    <title>BilldDesk - 开源远程桌面控制工具</title>
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        .hero-gradient {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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        .card-hover {
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</head>
<body class="bg-gray-50">
    <!-- Hero Section -->
    <section class="hero-gradient text-white py-20 px-6">
        <div class="max-w-6xl mx-auto">
            <div class="text-center">
                <h1 class="text-5xl md:text-6xl font-bold mb-6 tracking-tight">
                    BilldDesk
                </h1>
                <p class="text-xl md:text-2xl mb-8 opacity-90">
                    开源远程桌面控制工具，让远程协作变得简单高效
                </p>
                <div class="flex flex-wrap justify-center gap-4 mb-12">
                    <a href="https://desk.hsslive.cn" target="_blank" class="bg-white text-purple-700 px-8 py-3 rounded-full font-semibold hover:bg-gray-100 transition duration-300">
                        <i class="fas fa-globe mr-2"></i>访问官网
                    </a>
                    <a href="#features" class="border-2 border-white text-white px-8 py-3 rounded-full font-semibold hover:bg-white hover:text-purple-700 transition duration-300">
                        <i class="fas fa-info-circle mr-2"></i>了解更多
                    </a>
                </div>
                <div class="flex flex-wrap justify-center gap-6 text-sm">
                    <span><i class="fas fa-code mr-2"></i>基于 Vue3 + WebRTC</span>
                    <span><i class="fas fa-shield-alt mr-2"></i>MIT 开源协议</span>
                    <span><i class="fas fa-dollar-sign mr-2"></i>完全免费</span>
                </div>
            </div>
        </div>
    </section>

    <!-- Introduction Section -->
    <section class="py-16 px-6">
        <div class="max-w-4xl mx-auto">
            <div class="bg-white rounded-2xl shadow-xl p-8 md:p-12">
                <p class="text-lg leading-relaxed text-gray-700">
                    <span class="drop-cap">B</span>illdDesk 是一个基于现代 Web 技术栈开发的开源远程桌面控制工具。它采用 Vue3、WebRTC、Node.js 和 Electron 等前沿技术，为个人用户、开发者及小型团队提供了一个高效、便捷的跨设备远程操作解决方案。无论是远程办公、设备管理还是技术支持，BilldDesk 都能满足您的需求。
                </p>
            </div>
        </div>
    </section>

    <!-- Core Features Section -->
    <section id="features" class="py-16 px-6 bg-gray-100">
        <div class="max-w-6xl mx-auto">
            <h2 class="text-3xl md:text-4xl font-bold text-center mb-12 relative inline-block section-title">
                核心功能
            </h2>
            <div class="grid md:grid-cols-2 lg:grid-cols-3 gap-6">
                <div class="bg-white rounded-xl p-6 card-hover">
                    <div class="text-4xl mb-4 feature-icon">
                        <i class="fas fa-desktop"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-3">远程桌面控制</h3>
                    <p class="text-gray-600">通过 WebRTC 技术实现低延迟屏幕共享和远程操作，支持多平台无缝连接。</p>
                </div>
                <div class="bg-white rounded-xl p-6 card-hover">
                    <div class="text-4xl mb-4 feature-icon">
                        <i class="fas fa-file-transfer"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-3">文件传输</h3>
                    <p class="text-gray-600">快速传输文件，方便跨设备数据交换，提升工作效率。</p>
                </div>
                <div class="bg-white rounded-xl p-6 card-hover">
                    <div class="text-4xl mb-4 feature-icon">
                        <i class="fas fa-layer-group"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-3">跨平台支持</h3>
                    <p class="text-gray-600">兼容 Windows、macOS、Linux、Android 11+ 和 iOS 等主流操作系统。</p>
                </div>
                <div class="bg-white rounded-xl p-6 card-hover">
                    <div class="text-4xl mb-4 feature-icon">
                        <i class="fas fa-globe-asia"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-3">Web 端操作</h3>
                    <p class="text-gray-600">无需安装客户端，通过 Chrome 等现代浏览器直接使用。</p>
                </div>
                <div class="bg-white rounded-xl p-6 card-hover">
                    <div class="text-4xl mb-4 feature-icon">
                        <i class="fas fa-code-branch"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-3">开源可定制</h3>
                    <p class="text-gray-600">MIT 许可证，支持商用和二次开发，满足个性化需求。</p>
                </div>
                <div class="bg-white rounded-xl p-6 card-hover">
                    <div class="text-4xl mb-4 feature-icon">
                        <i class="fas fa-video"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-3">摄像头支持</h3>
                    <p class="text-gray-600">支持远程查看设备摄像头，可作为临时监控使用。</p>
                </div>
            </div>
        </div>
    </section>

    <!-- Architecture Visualization -->
    <section class="py-16 px-6">
        <div class="max-w-6xl mx-auto">
            <h2 class="text-3xl md:text-4xl font-bold text-center mb-12 relative inline-block section-title">
                技术架构
            </h2>
            <div class="bg-white rounded-2xl shadow-xl p-8">
                <div class="mermaid">
                    graph TB
                        A[BilldDesk 远程桌面系统] --> B[前端技术栈]
                        A --> C[后端技术栈]
                        A --> D[通信协议]
                        
                        B --> B1[Vue3 框架]
                        B --> B2[Electron 桌面端]
                        B --> B3[Web 浏览器端]
                        
                        C --> C1[Node.js 服务器]
                        C --> C2[WebSocket 连接]
                        
                        D --> D1[WebRTC P2P]
                        D --> D2[低延迟传输]
                        D --> D3[加密通信]
                        
                        style A fill:#667eea,stroke:#fff,stroke-width:2px,color:#fff
                        style B fill:#f3f4f6,stroke:#667eea,stroke-width:2px
                        style C fill:#f3f4f6,stroke:#667eea,stroke-width:2px
                        style D fill:#f3f4f6,stroke:#667eea,stroke-width:2px
                </div>
            </div>
        </div>
    </section>

    <!-- Use Cases Section -->
    <section class="py-16 px-6 bg-gray-100">
        <div class="max-w-6xl mx-auto">
            <h2 class="text-3xl md:text-4xl font-bold text-center mb-12 relative inline-block section-title">
                使用场景
            </h2>
            <div class="grid md:grid-cols-3 gap-8">
                <div class="text-center">
                    <div class="w-20 h-20 bg-purple-100 rounded-full flex items-center justify-center mx-auto mb-4">
                        <i class="fas fa-headset text-3xl text-purple-600"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-3">远程技术支持</h3>
                    <p class="text-gray-600">IT 人员可远程修复客户设备，大幅降低现场支持成本，提高服务效率。</p>
                </div>
                <div class="text-center">
                    <div class="w-20 h-20 bg-purple-100 rounded-full flex items-center justify-center mx-auto mb-4">
                        <i class="fas fa-mobile-alt text-3xl text-purple-600"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-3">移动办公</h3>
                    <p class="text-gray-600">在手机上控制办公室电脑，随时随地处理紧急任务，真正实现移动办公。</p>
                </div>
                <div class="text-center">
                    <div class="w-20 h-20 bg-purple-100 rounded-full flex items-center justify-center mx-auto mb-4">
                        <i class="fas fa-bug text-3xl text-purple-600"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-3">开发测试</h3>
                    <p class="text-gray-600">开发者通过 Web 端测试不同设备上的应用，提升跨平台开发效率。</p>
                </div>
            </div>
        </div>
    </section>

    <!-- Comparison Section -->
    <section class="py-16 px-6">
        <div class="max-w-6xl mx-auto">
            <h2 class="text-3xl md:text-4xl font-bold text-center mb-12 relative inline-block section-title">
                产品优势
            </h2>
            <div class="bg-white rounded-2xl shadow-xl overflow-hidden">
                <div class="grid md:grid-cols-2">
                    <div class="p-8 bg-gradient-to-br from-purple-50 to-purple-100">
                        <h3 class="text-2xl font-semibold mb-6 text-purple-800">
                            <i class="fas fa-check-circle mr-2"></i>BilldDesk 优势
                        </h3>
                        <ul class="space-y-3">
                            <li class="flex items-start">
                                <i class="fas fa-star text-purple-600 mt-1 mr-3"></i>
                                <span>完全免费，无任何功能限制</span>
                            </li>
                            <li class="flex items-start">
                                <i class="fas fa-star text-purple-600 mt-1 mr-3"></i>
                                <span>开源代码，支持高度定制化</span>
                            </li>
                            <li class="flex items-start">
                                <i class="fas fa-star text-purple-600 mt-1 mr-3"></i>
                                <span>Web 端免安装，降低使用门槛</span>
                            </li>
                            <li class="flex items-start">
                                <i class="fas fa-star text-purple-600 mt-1 mr-3"></i>
                                <span>支持商用，无需授权费用</span>
                            </li>
                        </ul>
                    </div>
                    <div class="p-8">
                        <h3 class="text-2xl font-semibold mb-6 text-gray-800">
                            <i class="fas fa-balance-scale mr-2"></i>对比传统方案
                        </h3>
                        <p class="text-gray-600 mb-4">
                            相比 TeamViewer、ToDesk 等商业软件，BilldDesk 提供了一个完全开放、免费的替代方